Zobrazeno 1 - 10
of 15
pro vyhledávání: '"Jonathan I. Saari"'
Autor:
Brenna R. Walsh, Patanjali Kambhampati, Colin Sonnichsen, Seth Coe-Sullivan, Jonathan I. Saari, Robert Nick, Michael M. Krause, Timothy G. Mack
Publikováno v:
The Journal of Physical Chemistry C. 123:3868-3875
Semiconductor nanocrystals are being developed with increasingly complex shapes and geometries, often featuring complex shell structures. One aims to characterize these structures by different probes, beyond electronic spectroscopies. Vibrational spe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3b54bca4fb0a17b185a6ec4bbd03fb41
https://doi.org/10.1021/acs.jpcc.8b11099
https://doi.org/10.1021/acs.jpcc.8b11099
Autor:
Brenna R. Walsh, Jonathan I. Saari, Patanjali Kambhampati, Michael M. Krause, Seth Coe-Sullivan, Timothy G. Mack, Robert Nick
Publikováno v:
The Journal of Physical Chemistry C. 120:19409-19415
The interface of semiconductor nanocrystals is a critical factor for determining their performance in light emissive applications. Traditional nanocrystals have an abrupt termination of the core/shell interface. Recent synthetic work has focused upon
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b2e7fdd71c69c9fd3c8d5aac71700350
https://doi.org/10.1021/acs.jpcc.6b05836
https://doi.org/10.1021/acs.jpcc.6b05836
Autor:
Michael M. Krause, Seth Coe-Sullivan, Robert Nick, Brenna R. Walsh, Jonathan I. Saari, Patanjali Kambhampati
Publikováno v:
Chemical Physics. 471:11-17
Excitonic state-resolved pump/probe spectroscopy and time correlate single photon counting were used to study exciton dynamics from the femtosecond to nanosecond time scales in CdSe/Cd,Zn,S nanocrystals. These measurements reveal the role of the core
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::26a43c965fe7e49bb58fadb68a2433ca
https://doi.org/10.1016/j.chemphys.2015.11.004
https://doi.org/10.1016/j.chemphys.2015.11.004
Autor:
Seth Coe-Sullivan, Brenna R. Walsh, Michael M. Krause, Jonathan I. Saari, Patanjali Kambhampati, Robert Nick
Publikováno v:
The Journal of Physical Chemistry C. 119:16383-16389
Semiconductor nanostructures have shown promise for light emission across various intensity regimes. Desired performance objectives of photoluminescence efficiency, low gain threshold, large gain lifetime and bandwidth have not been met by any one na
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::93a337ae88fff5fb65c95eac94a8ae67
https://doi.org/10.1021/acs.jpcc.5b03853
https://doi.org/10.1021/acs.jpcc.5b03853
Autor:
Brenna R. Walsh, Jonathan I. Saari, Patanjali Kambhampati, Anne Myers Kelley, Jonathan Mooney, Michael M. Krause
Publikováno v:
The Journal of Physical Chemistry B. 117:15651-15658
The realistic electronic structure of semiconductor nanocrystals is characterized by excitonic fine structure and atomistic symmetry breakings that are challenging to resolve experimentally. Exciton-phonon coupling is one of the most sensitive measur
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::062dd8803e96afae1e578cb5b603f0db
https://doi.org/10.1021/jp406323f
https://doi.org/10.1021/jp406323f
Publikováno v:
Nano Letters. 13:722-727
Optical pumping of semiconductor nanocrystals with femtosecond pulse sequences was performed in order to modulate multiexciton populations. We show for the first time that control of multiexciton populations produces high speed modulation of stimulat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e1c821a12d1f41e4ae7ae2bda834ffa8
https://doi.org/10.1021/nl3044053
https://doi.org/10.1021/nl3044053
Publikováno v:
The Journal of Physical Chemistry C. 116:5407-5413
Semiconductor quantum dots are of interest as optical gain media for lasing applications. Here we report on efficient, broad bandwidth optical gain in the CdSe/ZnS/CdSe quantum dot/barrier/quantum shell nanocrystal. These nanocrystals are known to su
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d966ee9459061664af3beaa4358417ee
https://doi.org/10.1021/jp211325x
https://doi.org/10.1021/jp211325x
Autor:
D. M. Sagar, Ryan R. Cooney, Patanjali Kambhampati, Jonathan I. Saari, Samuel L. Sewall, Pooja Tyagi
Publikováno v:
Nano Letters. 10:3062-3067
By direct observation of coherent acoustic phonons, we demonstrate a novel extrinsic piezoelectric response in colloidal CdSe semiconductor quantum dots. This response is driven by the migration of charges to the surface of the quantum dot on a vibra
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::351528df3a5c5d9ed15eb208ed123962
https://doi.org/10.1021/nl101605r
https://doi.org/10.1021/nl101605r
Publikováno v:
The Journal of chemical physics. 138(20)
Several different compositions of semiconductor nanocrystals are subjected to numerous spectroscopic techniques to elucidate the nature of surface trapping in these systems. We find a consistent temperature-dependent relationship between core and sur
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cfb653829d091c31c40ea9139e6b352e
https://pubmed.ncbi.nlm.nih.gov/23742498
https://pubmed.ncbi.nlm.nih.gov/23742498
Autor:
Pooja Tyagi, Brenna R. Walsh, Vincent Crozatier, Jonathan I. Saari, Patanjali Kambhampati, Nicolas Forget, Amin Kabir
Publikováno v:
The journal of physical chemistry. A. 117(29)
We demonstrate a dual pulse-shaper setup capable of independent polarization, phase, and amplitude control over each pulse. By using active phase stabilization, we achieve a phase stability of ~λ/314 between the two pulse shapers, making the dual-sh
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1d4e5c4a8c082684d3e3bf7adaba866b
https://pubmed.ncbi.nlm.nih.gov/23594275
https://pubmed.ncbi.nlm.nih.gov/23594275